Synthesis of polypropylene graft copolymers from a hydroxyl-groups-containing polypropylene precursor via atom-transfer radical polymerization

2006 ◽  
Vol 55 (6) ◽  
pp. 675-680 ◽  
Author(s):  
Liaoyun Zhang ◽  
Guoqiang Fan ◽  
Cunyue Guo ◽  
Jin-Yong Dong ◽  
Youliang Hu ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Graft Copolymers ◽  
Hydroxyl Groups ◽  
Atom Transfer

Graft Copolymers with Polyamide Backbones via Combination of Passerini Multicomponent Polymerization and Controlled Chain-growth Polymerization

2014 ◽  
Vol 67 (4) ◽  
pp. 555 ◽  
Author(s):  
Xin-Xing Deng ◽  
Yang Cui ◽  
Yao-Zong Wang ◽  
Fu-Sheng Du ◽  
Zi-Chen Li
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Graft Copolymers ◽  
Chain Growth ◽  
Hydroxyl Groups ◽  
Side Chains ◽  
Atom Transfer ◽  
Polymer Backbone ◽  
Vinyl Polymer

We report a facile ‘grafting from’ approach to graft copolymers with polyamide backbones and controlled vinyl polymer or polyester side chains. Two polyamides with in situ-formed pendant bromide or hydroxyl groups were obtained by Passerini-based multicomponent polymerization. They were used respectively to initiate the atom-transfer radical polymerization of vinyl monomers or the ring-opening polymerization of lactones to generate two new types of graft copolymers. One of the important features of the method is that the pendant initiators are generated in situ from non-branching monomers, and they are linked to the polymer backbone by ester bonds. Therefore, the vinyl polymer side chains could be detached from the backbones, and their structures could thus be fully characterized. Moreover, multicomponent polymerization and atom-transfer radical polymerization can even be carried out in a one-pot manner.

Graft copolymers prepared by atom transfer radical polymerization (ATRP) from cellulose

Polymer ◽  
2009 ◽  
Vol 50 (2) ◽  
pp. 447-454 ◽  
Author(s):  
Tao Meng ◽  
Xia Gao ◽  
Jun Zhang ◽  
Jinying Yuan ◽  
Yuzhu Zhang ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Graft Copolymers ◽  
Atom Transfer

SURFACE-INITIATED ATOM TRANSFER RADICAL POLYMERIZATION OF HYDROXYETHYL ACRYLATE FROM ACTIVATED CARBON POWDER WITH HOMOGENIZED SURFACE GROUPS

2007 ◽  
Vol 14 (02) ◽  
pp. 269-275 ◽  
Author(s):  
PENG LIU ◽  
TINGMEI WANG
Keyword(s):  
Activated Carbon ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Photoelectron Spectroscopy ◽  
Water System ◽  
Carbon Powder ◽  
Hydroxyl Groups ◽  
Atom Transfer ◽  
Surface Hydroxyl ◽  
Surface Hydroxyl Groups

The well-defined poly(hydroxyethyl acrylate) (PHEA) brushes were grafted from the surfaces of the activated carbon (AC) powder with the controlled/"living" radical polymerization technique. First, surface functional groups of the AC powder were homogenized to hydroxyl groups by oxidizing with nitric acid and then reducing with lithium tetrahydroaluminate ( LiAlH 4) at first. Second, the surface hydroxyl groups were treated with bromoacetylbromide, and the bromoacetyl groups were introduced. And in the third step, the bromoacetyl activated carbon ( BrA-AC ) powder were used as macro-initiators for the surface-initiated atom transfer radical polymerization (SI-ATRP) of hydroxyethyl acrylate (HEA) in the presence of 1,10-phenanthroline and Cu(I)Br as catalyst in a water system. The graft parameters calculated from the elemental analyses (EA) results, conversion of monemer (C%) and percentage of grafting (PG%) were 5.74% and 28.7%, respectively, after polymerizing for 5 h. The graft polymerizations exhibited the characteristics of a controlled/"living" polymerization, and no homopolymer was found in the proposed polymerizing process. The preparation procedure of the poly(hydroxyethyl acrylate) grafted activated carbon (PHEA-AC) powder was also investigated by X-ray photoelectron spectroscopy (XPS). The PHEA-AC powder is expected to be used as selective adsorbents because of their abundant homogenized surface hydroxyl groups.

Surface-initiated atom transfer radical polymerization on cotton fabric in water aqueous

2012 ◽  
Vol 83 (4) ◽  
pp. 363-370 ◽  
Author(s):  
Tieling Xing ◽  
Jie Liu ◽  
Shiwei Li
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Cotton Fabric ◽  
Control Sample ◽  
Attenuated Total Reflection ◽  
Hydroxyl Groups ◽  
Atom Transfer ◽  
Amino Groups ◽  
X Ray ◽  
Tertiary Amino

In this work, 2-bromoisobutyryl bromide was first reacted with the hydroxyl groups on the surface of cotton fabric to obtain cotton macroinitiator (C-Br) for surface-initiated atom transfer radical polymerization (ATRP) of (2-dimethylamino)ethyl methacrylate (DMAEMA). Then C-Br was grafted with DMAEMA via the ATRP method in water aqueous. The tertiary amino groups of immobilized DMAEMA polymer on the cotton fabric were quaternized with bromomethane to produce the antibacterial function. The structure of cotton-grafted-PDMAEMA (C-g-PDMAEMA) was characterized by attenuated total reflection–Fourier transform infrared spectroscopy, scanning electron microcopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The results show that DMAEMA was grafted onto the surface of cotton and the tertiary amino groups were quaternized. The C-g-PDMAEMA has good thermostability. The whiteness and strength of C-g-PDMAEMA decreased slightly, but the wrinkle recovery angle increased distinctly compared with the control sample. The quaternized grafted cotton has the great antibacterial property and good laundry resistance.

scholarly journals Preparation of poly(styrenesulfonic acid) grafted Nafion with a Nafion-initiated atom transfer radical polymerization for proton exchange membranes

RSC Advances ◽  
2017 ◽  
Vol 7 (59) ◽  
pp. 37255-37260 ◽  
Author(s):  
Kang-Jen Peng ◽  
Juin-Yih Lai ◽  
Ying-Ling Liu
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Graft Copolymers ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Atom Transfer

Nafion-initiated atom transfer radical polymerization to prepare graft copolymers of Nafion for proton exchange membranes.

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